Percussion-fuse.



K. WIESBR. PERCUSSION FUSE. APPLICATION :FILED MAY 11, I1912.

1,062,8 1 O. Patented May .27, 1913.

, the pere tIAL QF BREDENEY,

SELLSGHFT, @E ESSEN-CLTHE-RUER, GERMANY.

cussion-Fuses, of Which the following is specification.

Thi invention relates peto issioi; fuses in Wl h all the moving paris'are located Withinrtlhe its? housing n n-:.5 the object o' theinvention is to pro Tide e. fuse. of this ltind which is distingnisholhv great sensitii' ness and by accurate noti-.ni not onlyv When theptojectile strikes 'withthe -oint buty `also 'when it strikes with thehase. ln

accordance with the present lit'ention tlie object attained in thisnninnen that one the ports carrying the ignititin inenns is actua by anignition spying which is held bock by is. latch` 1nd that :i 'ieicnssionhninniet' is utilized for This percussion haininer can inoi'o in severaldirections -on account of its inertia,l atteibeing released fronizi.safety device piovided tor it. and the liannnei' is so constructed thatit will operate thelntch in Whatei'ei direction it moves.

So-colled Contact nses' ifoi` sen mines are already known, tlnit is tosay fuses which are piovided with n percusgion hammer et'- lng lvjfondsin one of the ontei surface of th@ the ports calin/'ing a actuated bj;in ignon heid boel; by titoli. released eitheiI e. hits the inlinebj*o). the perou. on hni'znnei; oi: in.'

i hin point. lt lies nl fuses for torpedo s. ieleziso of the lntcn cnnnotti .1.

accomplished by impact with t ly only,y he percus sion hammer.

The object of the inse of. the present invention diiletentiates fromthat o1C the known fuses therein, that the inertia of the percussionhammer is utilized to produce o projectile fuse, which is always setautr inaticnlly in fiction, Whether the impact of the projectile be madeby the point or the base.

One embodiment of the invention is illus tinted in the. accompanyingdmwings Where Sp ciication of Letters Eotent.

E :dented Moy 27, NH3.

a bose percussion fuse has been shown, and

iereot'- i l l 'nre l is section along the longitudinal axis of thefuse; Fig. 2 a section on line 2 2 oic Fig. l 'troni the let't; Fig. 3 aaeetion on line 3 3 of Fig. l seen from nbove'nnd Fig. ai n section online ll--d of lli 9 seen i'iom above. A

Che inse body consists of two hollow7 Si and B connected by vscrewthreads. 'ine toi-wund bolloY part has two chainbeis lll und B2 dividedbyn pni'tition 7.23 (coin )zii-ev Fig. Q) und is closed np by a sci-ewplug C. which contains the fnlminato rflic chunioei B. lwhich is formedby two bores, oiiset. stepwise, contains a, cop shape-d percussionhummer D which foaclns toi'n'nid into the bore @2 of the sciew plug C.The percussion hmnniei` D is actuated by o spring E. T 'ch :ibnts with@ne end against o Washer lying on the partition o, and tends to push theperf; ssion lininniei' in the direction oit piercing the fulminnte cl.The pe tission hammer D is held in itsl tinnsport gfosition, illustratedin the drawing, b vnieans ot two double-armed pziwls tt, which arendapted to oscillote on pins g1 Within :ipei'tui'es l* of the hollowpart l, the axes of which pins tun at right angles to the longitudinalaxis of the fuse. i701' this pinpose vthe pools G are at one endprovided with toes g2 which engjnge with an nnntilei tiene Z2 on thepercussion hfinin e: l), The o cnii'v' toes g3 which siinnl nieously l rt f iinst ai collar h1 on n. sliding bolt ti.

L. e* bolt ^i.

tends ,titli its lo nto miie)y clniinbeil` of the holl'.' nl Reacheswith its i'ein'toict-,d

bote nl; closed on the ontJ the hollow".v port and I thisl slid-- t isdisplnceablc in both directions ends of the imi-tis C+ 4sure is socalculated that the friction caused thereby is able to exercise only asmall resistance against any displacement of the y sliding bolt H. "Whenthe projectile therefore hits a target, only a slight impact either atthe point or the base Will be necessary to cause the sliding bolt H tobe dis# placed on account of its inertia either toward the point ortoward the base of the projectile,l as the sliding bolt H is only heldby the friction' from the toes g3 after the swinging out of the dogs J.In either case the collar 71,1 of the sliding bolt H will disengage thetoes g3. The ends of the paWls Gr that carry the toes g2 Will then flyapart, actuated by the centrifugal force, so that the toes g2 Willslideoff the collar cl2 of the percussion hammer D, thereby setting free thepercussion hammer D, which thereupon by means of the spring E Will driyeits firing pin d1 into the fulminate c1 thus causing the ignition.

l. In a percussion fuse, the combination With ignition means comprisinga. fulminate and a firing pin; a percussion hammer carrying one of saidignition means, a tiring spring tending to drive the hammer in thedirection to fire said ignition means; arresting means for saidpercussion hammer, normally holding said percussion hammer retractedagainst said firing spring, a releasing bolt engaging said arrestingmeans and movable on impact in various directions only by the action ofinertia, said bolt being adapted to release said arresting means whenmoving in any direction, and a casing completely inclosing thepercussion hammer, the firing spring, the arresting means and saidreleasing bolt.

2. In a percussion fuse having a main body inclosing 'all the movingparts of the fuse, a fulminate seated in said main body; a percussionhammer; a firing pin on said percussion hammer; a spring acting betweenthe mainbody and the percussion hammer to drive the latter against thefulminate; arresting means normally holding said percussion hammer in aretracted osition, said arresting means comprising a ange 0n saidpercussion hammer, pawls mounted in said main body to oscillate inradial planes through the longitudinal axis of the fuse, each of saidpayvls having a long and a short arm, the long arms of the pawlsnormally engaging said flange; a sliding bolt, mo-unted to slide axiallyin both directions in the main body, a collar on said sliding boltnormally inengagement with said short arms of the pawls; releasing meansfor said bolt actuated by the centrifugal force.

3. In a percussion fuse having a main body inclosing all the movingparts of the fuse, a fulminate seated in said main body; a percussionhammer; alfiring pin on said percussion han'uner; a spring actingbetween the main body and the percussion hammer to drive the latteragainst the fu1- minate; arresting means normally holding saidpercussion hammer in a retracted posi tion, said arresting meanscomprising a flange on said percussion hammer, pawls mounted in saidmain body to oscillate in radial planes through the longitudinal axis ofthe fuse, each of said pawls haying a long and a short arm, the longarms of the pawls normally engaging said flange; a sliding bolt, mountedto slide axially in both directions in the main body, a collar on saidsliding bolt normally in engagement with said short arms of the paiyls;releasing means for said arresting means, com rising a plurality of dogsfulcrum'ed to swing in a plane at right angles to the longitudinal axisof the fuse, a groove in said sliding bolt normally engaging said dogs;the dogs swinging out of said groove actuated by the centrifugal forceleaving the sliding bolt free for displacement in any axial direction onimpact, whereby said pawls Will be free to'release said hammer, thespring actuated hammer thus striking the fulminate.

The foregoing specification signed at Barmen, Germany, this25th day ofApril,

ALBERT Norm.

